![A-Tech 64GB RAM for HP Z640 Workstation | DDR4 2666MHz PC4-21300 ECC Load Reduced LRDIMM 4Rx4 1.2V - Server Memory Upgrade Module at Amazon.com A-Tech 64GB RAM for HP Z640 Workstation | DDR4 2666MHz PC4-21300 ECC Load Reduced LRDIMM 4Rx4 1.2V - Server Memory Upgrade Module at Amazon.com](https://m.media-amazon.com/images/I/71NXyuShUXL.jpg)
A-Tech 64GB RAM for HP Z640 Workstation | DDR4 2666MHz PC4-21300 ECC Load Reduced LRDIMM 4Rx4 1.2V - Server Memory Upgrade Module at Amazon.com
![Amazon.com: HP Z640 Tower - Intel Xeon E5-2643 V3 3.4GHz 6 Core - 64GB DDR4 RAM - LSI 9217 4i4e SAS SATA Raid Card - 1.2TB (2X 600GB SAS New HDD) - Amazon.com: HP Z640 Tower - Intel Xeon E5-2643 V3 3.4GHz 6 Core - 64GB DDR4 RAM - LSI 9217 4i4e SAS SATA Raid Card - 1.2TB (2X 600GB SAS New HDD) -](https://m.media-amazon.com/images/I/31v4-jwjHGL.jpg)
Amazon.com: HP Z640 Tower - Intel Xeon E5-2643 V3 3.4GHz 6 Core - 64GB DDR4 RAM - LSI 9217 4i4e SAS SATA Raid Card - 1.2TB (2X 600GB SAS New HDD) -
![32GB Memory for HP Z640 Workstation DDR4 PC4-17000 2133 MHz LRDIMM RAM (PARTS-QUICK Brand) at Amazon.com 32GB Memory for HP Z640 Workstation DDR4 PC4-17000 2133 MHz LRDIMM RAM (PARTS-QUICK Brand) at Amazon.com](https://m.media-amazon.com/images/I/41kXkSjrn7L._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
32GB Memory for HP Z640 Workstation DDR4 PC4-17000 2133 MHz LRDIMM RAM (PARTS-QUICK Brand) at Amazon.com
![Refurbished: HP Z640 Workstation E5-2609 v3 1.9GHz 6-Cores 64GB DDR4 Quadro K600 512GB SSD No Operating System Desktop Computers - Newegg.com Refurbished: HP Z640 Workstation E5-2609 v3 1.9GHz 6-Cores 64GB DDR4 Quadro K600 512GB SSD No Operating System Desktop Computers - Newegg.com](https://c1.neweggimages.com/productimage/nb640/AC0F_1_20180329653069087.jpg)
Refurbished: HP Z640 Workstation E5-2609 v3 1.9GHz 6-Cores 64GB DDR4 Quadro K600 512GB SSD No Operating System Desktop Computers - Newegg.com
![Amazon.com: for HP Z640 Workstation Server Motherboard DDR4 761512-001 710352-002 X99 C612 LGA 2011 100% Working : Electronics Amazon.com: for HP Z640 Workstation Server Motherboard DDR4 761512-001 710352-002 X99 C612 LGA 2011 100% Working : Electronics](https://m.media-amazon.com/images/I/81oOsYVkEoL.jpg)
Amazon.com: for HP Z640 Workstation Server Motherboard DDR4 761512-001 710352-002 X99 C612 LGA 2011 100% Working : Electronics
![Amazon.com: HP Z640 Tower - 2X Intel Xeon E5-2680 V3 2.5GHz 12 Core - 128GB DDR4 RAM - LSI 9217 4i4e SAS SATA Raid Card - 2TB (2X New 1TB SSD Enterprise) - Amazon.com: HP Z640 Tower - 2X Intel Xeon E5-2680 V3 2.5GHz 12 Core - 128GB DDR4 RAM - LSI 9217 4i4e SAS SATA Raid Card - 2TB (2X New 1TB SSD Enterprise) -](https://m.media-amazon.com/images/I/31v4-jwjHGL._AC_UF894,1000_QL80_.jpg)
Amazon.com: HP Z640 Tower - 2X Intel Xeon E5-2680 V3 2.5GHz 12 Core - 128GB DDR4 RAM - LSI 9217 4i4e SAS SATA Raid Card - 2TB (2X New 1TB SSD Enterprise) -
![Adamanta Micron Original 128GB (4x32GB) Server Memory Upgrade for HP Z640 Workstation with Single and Dual CPU DDR4 2400MHZ PC4-19200 ECC Registered Chip 2Rx4 CL17 1.2v RAM at Amazon.com Adamanta Micron Original 128GB (4x32GB) Server Memory Upgrade for HP Z640 Workstation with Single and Dual CPU DDR4 2400MHZ PC4-19200 ECC Registered Chip 2Rx4 CL17 1.2v RAM at Amazon.com](https://m.media-amazon.com/images/I/81wf5ahwq8L._AC_UF894,1000_QL80_.jpg)
Adamanta Micron Original 128GB (4x32GB) Server Memory Upgrade for HP Z640 Workstation with Single and Dual CPU DDR4 2400MHZ PC4-19200 ECC Registered Chip 2Rx4 CL17 1.2v RAM at Amazon.com
![Amazon.com: HP Z640 Workstation E5-2630 V3 Eight Core 2.4Ghz 64GB 1TB SSD 2TB NVS310 Win 10 Pre-Install (Renewed) : Electronics Amazon.com: HP Z640 Workstation E5-2630 V3 Eight Core 2.4Ghz 64GB 1TB SSD 2TB NVS310 Win 10 Pre-Install (Renewed) : Electronics](https://m.media-amazon.com/images/I/411T6KUUE+L._AC_UF894,1000_QL80_.jpg)